Answer:
d. Under normal circumstances, each chromosome contains precisely one gene.
Explanation:
The gene is a segment of a DNA molecule, responsible for genetically inherited traits. Each gene consists of a specific DNA sequence that contains a code (instructions) to produce a protein that performs a specific function in the body. Each human cell has about 25,000 genes.
The genes are located within the chromosomes. A chromosome can house thousands of genes, it is not normal for a chromosome to house a gene or a few units. Thus, if a cell contains 46 chromosomes, that cell has an incalculable number of genes.
In the first one draw the molecules closer together and in the second one draw them more diverse and farther apart hope that helps
I believe it is B i took this test last year.
I didn’t see any of the following but I can say that one reason they use it is to record their findings
Is it because there is to many bliw dryes plugged in